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Is it okay too many commas in a sentence?

For instance, one of my friends, John majoring in Egyptian at a university could not get a job in Korea because there are a few companies related to Egypt in Korea. However, he could get a good job after he studied English and got a certification about business. In other way, having many skills is helpful for us to get a job.
In the first sentence as you can see, I used two commas. I am wondering if they are okay or not.